This is actually the short extra added to the tankoubon of the main series Ubawareru Koto Marugoto Zenbu. I quite like it actually, despite it being only very short and minor. I guess after Takao learned his lesson and position during the main story he's quite reasonable to handle now. Yoshinaga's just the same as always, which is not a bad thing haha. The whole thing is surprisingly sexy AND adorable. What could one ask for more than that.